Cihan Doger

Sağlık Bilimleri Üniversitesi · Ankara Bilkent Şehir Hastanesi Anesteziyoloji ve Reanimasyon

Brazil's Universities and Research Institutions: Comprehensive Analysis of 584 Universities and Institutions and 76,123 Scientists AD Scientific Index 2025

Türkiye's Universities and Research Institutions: Comprehensive Analysis of 292 Universities and Institutions and 79,954 Scientists AD Scientific Index 2025 World Scientist and University Rankings 2025

Argentina's Universities and Research Institutions: Comprehensive Analysis of 127 Universities and Institutions and 13,829 Scientists AD Scientific Index 2025 World Scientist and University Rankings 2025

Indonesia's Universities and Research Institutions: Comprehensive Analysis of 2,240 Universities and Institutions and 106,093 Scientists AD Scientific Index 2025

United Kingdom's Universities and Research Institutions: Comprehensive Analysis of 320 Universities and Institutions and 96,764 Scientists AD Scientific Index 2025 World Scientist and University Rankings 2025

China's Universities and Research Institutions: Comprehensive Analysis of 1,136 Universities and Institutions and 102,902 Scientists AD Scientific Index 2025

India's Universities and Research Institutions: Comprehensive Analysis of 3,994 Universities and Institutions and 129,369 Scientists AD Scientific Index 2025 World Scientist and University Rankings 2025

United States's Universities and Research Institutions: Comprehensive Analysis of 3,199 Universities and Institutions and 449,090 Scientists AD Scientific Index 2025 World Scientist and University Rankings 2025

Subject-Based Institutional Rankings: A Key Resource for Cross-Border Transfer and Equivalency Evaluations The AD Scientific Index's subject-based institutional rankings in 13 main fields serve as a crucial reference for evaluating cross-border transfer or graduation equivalency applications. Universities may excel or fall behind in specific subje...

Aims: The aim of this study was to establish the clinical characteristics and their impact on the length of stay (LOS) of patients discharged from a palliative care center (PCC) to home care (HC). Methods: Our cross-sectional study retrospectively analysed 314 patients who were discharged from PCC to HC between 1 January 2015 and 30 September 2018....

World Scientist and University Rankings 2024 Türkiye Top 10000 Scientists 2024 AD Scientific Index 2024 https://www.adscientificindex.com/pdfs/toplists/t%C3%BCrkiye-top-scientists.pdf?v1695470733

Bu çalışmanın 18.132 akademisyenin analizini içeren daha ayrıntılı formatı için lütfen TÜRKİYE AKADEMİK PERFORMANS ANALİZİ -2021 Versiyon 2. (“AD Scientific Index” Türkiye- 2021 Versiyon 2) www.adscientificindex.com Başlıklı çok sayıda analiz, branş tablosu, grafik ve KKTC eklenmiş çalışmamıza bakınız . 2022 VERSİYONU OCAK 2022 DE YAYINLANACAKTIR....

https://adscientificindex.com “AD Scientific Index” Turkey- 2023 Assessment of academic performance in Turkish Institutes, 2023. Ranking of 29.108 scientists and 283 university with their major subject and speciality was determined based on the total and last six-year of citation, indexes of h and i10 from public profiles of Google Scholar Citati...

China Top 10.000 Scientists "AD Scientific Index 2023” Total 60.186 scientists, 961 university AD Scientific Index China- 2023 Top 10.000 Scientists. Assessment of academic performance in China Institutes, 2023. Ranking of first 10.000 academicians along with their major and scientific area of interests in China based on H-index, i10 index and cita...

India Top 10.000 Scientists 2023. ”AD Scientific Index 2023” World Scientist and University Rankings 2023 Total 78.255 scientists, 3.752 university "AD Scientific Index India - 2023" Top 10.000 Scientists. Assessment of academic performance in India Institutes, 2023. Ranking of first 10.000 academicians along with their major and scientific area of...

Total 49.716 scientist, 161 country, 5.861 university https://www.adscientificindex.com/subject-rankings/?tit_sub=Engineering+%26+Technology+%2F+Computer+Science&con=&country_code=&subject=&tit=Engineering+%26+Technology

22.566 scientist, 138 country, 3.631 university https://www.adscientificindex.com/subject-rankings/?tit_sub=Engineering+%26+Technology+%2F+Electrical+%26+Electronic+Engineering&con=&country_code=&subject=&tit=Engineering+%26+Technology

Latin America Top 10000 Scientists AD Scientific Index 2023

Türkiye Top 10.000 Scientists ”AD Scientific Index 2023” World Scientist and University Rankings 2023

Background/Aim: Oxidative stress is known to increase in patients receiving anesthesia before undergoing surgery. Since newborns are more sensitive to oxygen-free radicals, the effects and characteristics of anesthesia methods that are used for pregnant women require analysis. This study aimed to evaluate the effects of spinal and general anesthesi...

World's Top 2% Scientists list 2022 World Top 2% Scientists ”AD Scientific Index 2022 Version 2” Table I. Number of scientists in World top 2% according to Country Table II. General Universities/Institutions in World top 2% Table III. Public Universities in World top 2% Table IV. Private Universities in World top 2% Table V. Universities Founded Af...

Daha ayrıntılı bilgi için Bkz. https://www.adscientificindex.com/

World Top 10.000 Scientists AD Scientific Index 2022 Version 1 From www.adscientificindex.com Assessment of academic performance in World Institutes, 2022. Ranking of 715.000 scientists was determined based on the total and last five-year of citation, indexes of h and i10 from public profiles of Google Scholar Citations.. AD Scientific Index 2022...

AD Scientific Index 2021 Oceania Top 10.000 Scientists Version 1.1 The AD Scientific Index (Alper-Doger Scientific Index), unlike other systems that provide evaluations of journals and universities, is a ranking and analysis system based on the scientific performance and the added value of the scientific productivity of individual scientists. Furth...

AD Scientific Index- 2022 “Turkey Top 10.000 Scientists “ TÜRKİYE AKADEMİK PERFORMANS ANALİZİ-2022 Versiyon 1 listesi yayınlandı. Türkiye'de en çok atıf alan ve H index'i en yüksek 10.000 akademisyen (2022 Versiyon 1) Uluslararası sıralama kuruluşu AD Scientific Index’in Google Scholar açık profillerine göre AD Scientific Index- 2022 “Turkey Top 10...

AD Scientific Index 2021 Europe Top 10.000 Scientists Version 1 The AD Scientific Index (Alper-Doger Scientific Index), unlike other systems that provide evaluations of journals and universities, is a ranking and analysis system based on the scientific performance and the added value of the scientific productivity of individual scientists. Furtherm...

AD Scientific Index 2021 EECA Top 10.000 Scientists Version 1.1 The AD Scientific Index (Alper-Doger Scientific Index), unlike other systems that provide evaluations of journals and universities, is a ranking and analysis system based on the scientific performance and the added value of the scientific productivity of individual scientists. Furtherm...

AD Scientific Index 2021 BRICS Top 10.000 Scientists Version 1 The AD Scientific Index (Alper-Doger Scientific Index), unlike other systems that provide evaluations of journals and universities, is a ranking and analysis system based on the scientific performance and the added value of the scientific productivity of individual scientists. Furthermo...

AD Scientific Index 2021 Arab League Top 10.000 Scientists Version 1.1 The AD Scientific Index (Alper-Doger Scientific Index), unlike other systems that provide evaluations of journals and universities, is a ranking and analysis system based on the scientific performance and the added value of the scientific productivity of individual scientists. F...

AD Scientific Index 2021 AfricaTop 10.000 Scientists Version 1.1 The AD Scientific Index (Alper-Doger Scientific Index), unlike other systems that provide evaluations of journals and universities, is a ranking and analysis system based on the scientific performance and the added value of the scientific productivity of individual scientists. Further...

AD Scientific Index 2021 North AmericaTop 10.000 Scientists Version 1 The AD Scientific Index (Alper-Doger Scientific Index), unlike other systems that provide evaluations of journals and universities, is a ranking and analysis system based on the scientific performance and the added value of the scientific productivity of individual scientists. Fu...

AsiaTop 10.000 Scientists AD Scientific Index 2021 Version 1.1 The AD Scientific Index (Alper-Doger Scientific Index), unlike other systems that provide evaluations of journals and universities, is a ranking and analysis system based on the scientific performance and the added value of the scientific productivity of individual scientists. Furthermo...

AD Scientific Index 2021 Latin America Top 10.000 Scientists Version 1 The AD Scientific Index (Alper-Doger Scientific Index), unlike other systems that provide evaluations of journals and universities, is a ranking and analysis system based on the scientific performance and the added value of the scientific productivity of individual scientists. F...

(2023 version : https://www.adscientificindex.com/top-lists/ ) AD Scientific Index 2021 World Top 10.000 Scientists Version 1 The AD Scientific Index (Alper-Doger Scientific Index), unlike other systems that provide evaluations of journals and universities, is a ranking and analysis system based on the scientific performance and the added value of...

Objectives: The aim of this study was to evaluate the effects of oxidative stress on thiol-disulfide homeostasis caused by hypotensive anesthesia in mastoidectomy-tympanoplasty cases undergoing controlled hypotension. Methods: Fifty adult patients scheduled for mastoidectomy and tympanoplasty were included in the study. Anesthesia was induced with...

Bağımlılık yapıcı madde kullanımı, tüm dünyada ciddi bir halk sağlığı sorunudur. Birleşmiş Milletler Uyuşturucu ve Suç Ofisi (UNODC) dünyadaki yetişkin nüfusun yaklaşık yüzde 5’inin, 2015’te en az bir kez madde kullandığını belirtmektedir. Daha da endişe verici olan ise, bu madde kullanıcılarının yaklaşık 29.5 milyonunun ya da başka bir ifadeyle kü...

ADSM/ADSH Girişimsel İşlemler Kontrol Rehberi

Verimlilik Yerinde Değerlendirme Rehberi,C, D, E1 Grubu Hastaneler

Verimlilik Yerinde Değerlendirme Rehberi, Ağız ve Diş Sağlığı Merkezleri, Ağız ve Diş Sağlığı Hastaneleri

Sağlık tesislerinin hizmet sunumu verimliliğini değerlendirmek, kaliteli ve etkili hizmet sunumda sürekliliği sağlamak, yöneticilerin ve çalışanların sağlık hizmeti sunum süreçlerine dair farkındalığını arttırmak amacıyla oluşturulan yerinde değerlendirme ekipleri, sağlık tesisleri ziyaretleri sırasında saydığımız tüm unsurları göz önünde bulundura...

Objective: This study aims to compare the effects of different inhalation anesthetics on oxidative status by measuring thiol-disulfide homeostasis in laparoscopic cholecystectomy surgeries. The effect of inhaler agents on thiol-disulfide homeostasis that shows the oxidative status in laparoscopic cholecystectomy is unknown. Materials and methods:...

Hastane Verimlilik Yerinde Değerlendirme Rehberi hastanelerin daha verimli yönetilmesine yönelik pratik ve kolay uygulanabilir öneriler içeren hazırlanmasında katkım olan bir eser: "Sağlık Bakanlığının yayımladığı Verimlilik Rehberi'nde sağlık tesisi yöneticilerinin tıbbi, idari ve mali süreçlere proaktif olarak katılması ve yöneticilerin sağlık te...

It is recommended that endotracheal cuff (ETTc) pressure be between 20 and 30 cm H2O. In this present study, we intend to observe average cuff pressure values in our clinic and the change in these values after the training seminar. The cuff pressure values of 200 patients intubated following general anesthesia induction in the operating theatre wer...

Aim: The aim of this study was to evaluate the factors that are effective for the treatment, recovery of pressure injury (PI) and costs in palliative care (PC) patients. Materials and methods: From a retrospective review of patient records, the PI localization, the presence of infection, PI stage on admission, discharge and treatment costs were...

With increased life expectancy, developments in intensive care (IC) and applications, there has been an increase in the length of stay of patients in IC Unit (ICU) in recent years. The aim of this study was to examine factors affecting the Length of Stay (LOS) in long-term ICU (LTICU)A total of 503 patients were included and the effects of variable...

A long-term care hospital (LTCH) is a specialized facility for patients with serious health problems who require continuous and intensive care but not comprehensive diagnostic methods. LTCHs provide prolonged complex care and wound care in the period following the acute stage of disease. When intensive care unit (ICU) stay is prolonged in the Unite...

Background: With the increase in elderly population, life-threatening chronic diseases are increasing, simultaneously increasing the need for palliative care centers (PCCs). Objectives: To evaluate the factors affecting the length of stay (LOS) and discharge of patients from a PCC. Methods: A retrospective scan was made of the records of patie...

Purpose: Endocrine and metabolic changes, which may affect the prognosis and outcome, can occur in critically ill patients. In this prospective study, we aimed to evaluate the changes in the pituitary-adrenal-gonadal-thyroid axis in patients admitted to the adult intensive care unit on admission and 15 days later and also to evaluate whether these...

Background Preoperative anxiety and stress are undoubtedly a difficult experience in patients undergoing elective surgery. These unpleasant sensations depend on several factors. The objective of this study was to evaluate the preoperative anxiety levels in a sample of Turkish population, as well as the underlying causes using the Spielberger State-...

Introduction: The preoperative distress and anxiety experienced by preschoolers are associated with an increased incidence of troubled recovery from anesthesia. However, influences of parental anxiety on children at different stages of the surgical processes are not clear. The aim of this study was to evaluate any existing association between preop...

Traumatic brain injury (TBI), which is seen more in young adults, affects both patients and their families. The need for palliative care in TBI and the limits of the care requirement are not clear. The aim of this study was to investigate the length of stay in the palliative care center (PCC), Turkey, the status of patients at discharge, and the ne...

Traumatic brain injury (TBI), which is seen more in young adults, affects both patients and their families. The need for palliative care in TBI and the limits of the care requirement are not clear. The aim of this study was to investigate the length of stay in the palliative care center (PCC), Turkey, the status of patients at discharge, and the ne...

Comparisons of age, LOS in PCC and GCS according to gender and discharge status

Comparison of clinical characteristics according to KPS grouping

Comparison of GOS grouping, diagnosis and causes of trauma according to gender and discharge status

Objective Percutaneous mitraclip implantation system, is a new technique developed for patients with high surgical risks. It is generally performed in a catheterisation laboratory with the guidance of fluoroscopy and transesophageal echocardiography. In this study, we aimed to share our experiences on anaesthetic in patients undergoing mitraclip im...

Objective. The aim of this prospective, randomized study was to investigate the effects of low-flow sevoflurane anesthesia on the pulmonary functions in patients undergoing laparoscopic cholecystectomy. Methods. Sixty American Society of Anesthesiologists (ASA) physical status classes I and II patients scheduled for elective laparoscopic cholecyste...

Introduction: The factors that have an impact on the stay and discharge of geriatric patients who were admitted to palliative care center (PCC) were investigated. Materials and Method: 111 were included in the study. Age, gender, marital status, primary diagnoses, nutritional status, decubitus ulcer, pain issues, palliative performance scale (PPS)...

Introduction: Endocrinological and metabolic changes can occur in critically ill patients, which may affect the prognosis and outcome. The hypothalamic–anterior–pituitary axis (HPA) plays a crucial role in the endocrine regulation of metabolic and immunological homeostasis. In this prospective study, we evaluated the pituitary–adrenal–gonadal–thyro...

p> Background and Aim: Thoracic, abdominal and thoraco-abdominal aortic pathologies have highest mortality and morbidity causing pathologies in cardiovascular surgery. Co-existing diseases and age significantly increase risk of anesthesia and mortality rate in treatment of these patients. Endovascular techniques are used increasingly due to minimal...

Aim: The aim of this study was to investigate the effect of different types of anesthesia on stress hormones. Materials and methods: The study was included 60 ASAI-II cases scheduled for major lower extremity surgery. The cases were randomized into 2 groups: The EA group was administered epidural anesthesia and the GA group was administered stan...

Background and aim: General anesthesia (GA) is the most commonly used anesthetic technique for spinal surgery. This study aimed to compare spinal anesthesia (SA) and GA in patients undergoing spinal surgery, in terms of perioperative outcome and cost effectiveness. Materials and methods: The study included 80 patients with ASA (American Society...

Introduction: The present study compared the effect of bupivacaine and bupivacaine + sufentanil on hemodynamic parameters and characteristics of spinal anesthesia in elderly patients undergoing transurethral resection of the prostate (TURP) under spinal anesthesia. Technical considerations: The study included 40 American Society of Anesthesiolog...

Purpose: We aimed to determine the effect of intravenous thrombolytic therapy on QT dispersion (QTd) and its role in the prediction of reperfusion arrhythmias. Materials and Methods: Twenty patients with acute myocardial infarction (MI) were enrolled in the study. Measurements of QTd were carried out prior to thrombolytic therapy and before dischar...

Platelets play a central role in the pathophysiology of coronary artery disease (CAD). Increased mean platelet volume (MPV) is an indicator of platelet function and associated with poor clinical outcome in patients with acute coronary syndrome (ACS). We evaluated the relationship between MPV and severity of CAD in patients with ACS. A total of 395...

Objective: This prospective, randomized study was designed to compare remifentanil and magnesium sulphate during middle ear surgery in terms of controlled hypotension. Materials and Methods: Fourty patients undergoing middle ear surgery were enrolled in the study. Patients were randomized into two groups of 40 to receive remifentanil (Group R) or m...

Introduction: In patients undergoing major surgery like cardiovascular surgery, the need for protein and energy increase due to surgical stress. Moreover geriatric patients with malnutrition undergoing these major surgeries constitute high risk groups. In this case report we present the nutrition protocol in intensive care unit in order to improve...

We evaluated the association of serum uric acid (SUA) level and development of coronary collateral vessels (CCVs) in patients with acute coronary syndrome (ACS). Patients (n = 224) with ACS were included in the study. Coronary collateral vessels were graded according to the Rentrop scoring system. Rentrop grade 0 was accepted as absence of CCV (gro...

Laurence Moon Bardet-Biedl syndrome (LMBBS) is a rare autosomal recessive disorder with clinical and genetic heterogenenity. This syndrome was first described by Laurence and Moon in 1866 and additional cases were described by Bardet and Biedl between 1920 and 1922. The main features are obesity, polydactyly, pigmentary retinopathy, learning disabi...